AT93041B

AT93041B - Process for the production of wires and tubes made of bimetal with a steel core.

Info

Publication number: AT93041B
Authority: AT
Original assignee: Cie Belge Du Bi Metal Sa
Priority date: 1919-11-13
Filing date: 1919-11-13
Publication date: 1923-06-11

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von Drähten und Rohren aus Bimetall mit Stahlseele. 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 diese   tarren-in Drähte von 5-6 mriz Durchmesser   gezogen werden, die weitergezogen und durch Erwärmen nachgelassen werden, genau so wie die Drähte aus Rotkupfer oder Messing. 



   Wenn es sich um hohle Stahlwalzen zur Herstellung von Rohren handelt, führt man in sie vor dem Vereinigen mit dem Umhüllungsrohr durch Druck eine vollständig zylindrische   Sta, hlwalze   ein, um Deformationen zu verhindern. Diese Stahlstange wird nach der Bearbeitung herausgezogen, das vereinigte Stück. wieder erhitzt und über einem kalten Dorn solange gewalzt, bis es in ein Rohr von 3-4 mm Dicke umgewandelt ist. Dieses Rohr wird durch Glühen nachgelassen, geschnitten und durch aufeinanderfolgende Ziehprozesse auf die gebräuchlichen Durchmesser der im Handel befindlichen Rohre gebracht.



   <Desc / Clms Page number 1>
 



  Process for the production of wires and tubes made of bimetal with a steel core.
 EMI1.1
 

 <Desc / Clms Page number 2>

 these tarren-in wires of 5-6 millimeters in diameter are drawn, which are drawn further and relaxed by heating, just like the wires made of red copper or brass.



   In the case of hollow steel rolls for the production of pipes, a completely cylindrical steel roll is inserted into them by pressure before they are united with the cladding tube in order to prevent deformation. This steel rod is pulled out after machining, the united piece. reheated and rolled over a cold mandrel until it is converted into a tube 3-4 mm thick. This tube is tempered by annealing, cut and brought to the usual diameter of commercially available tubes by successive drawing processes.

Claims

PATENT CLAIM: A process for the production of wires or pipes made of bimetal with a steel core, in which a round steel body is introduced into a plate of the coating metal driven into a sleeve and there is united with it under hydraulic pressure, characterized in that prior to driving the plate of coating metal on its to Inside the sleeve, a bimetallic plate made of copper, brass and small amounts of a more fusible metal, such as silver, and a less fusible metal, becomes the surface. Metal, such as nickel, is applied, which forms a solder between the copper and the steel during the treatment in the press.